The Image Collection web site presents photographs and information for the vascular plants, macrofungi, and lichenized fungi of Washington state. Photographs are accompanied by distribution maps, species descriptions, synonymy, and links to additional resources. An easy to use identification key is provided for vascular plants.

Washington is home to an estimated 3,652 species of vascular plants, 2,411 species of macrofungi, and 1,190 species of lichenized fungi across a diverse array of landscapes from lush coastal rainforests to dry sagebrush plains, high alpine meadows and much more in between.

Lichens are composite organisms composed of fungal species in a symbiotic relationship with algae and/or cyanobacteria. Although lichens are classified and named based on the fungal component, they are here presented separately from fungi for convenience of access.

The University of Washington Herbarium and its partners have released plant identification apps for the wildflowers of Washington (1,021 species) and Idaho (810 species), based in part on information contained in the Burke Herbarium Image Collection web site. The apps run on Apple, Android, and Amazon Kindle mobile devices (both phone and tablets).

This printed field guide by Steve Trudell and Joe Ammirati covers more than 450 species of macrofungi found in Washington, Oregon, Idaho, western Montana, and British Columbia, with an emphasis on forested habitats of western Washington and Oregon. Many photographs and species descriptions from the book are reproduced on the Burke Herbarium Image Collection web site, with permission from the authors.